Kyle Husmann

Expected type arguments for generic class "PRecord" (pylance/pyright)

2

When trying the example with pylance/pyright in vscode, I get an "PylancereportMissingTypeArgument" type hint error: e.g.: ``` class ARecord(PRecord): x = field() ``` PRecord is flagged with 'Expected type arguments...

categorical dtypes with explicit value->label mappings

4

### Problem description First, thank you for this fantastic project! I really appreciate the lazy evaluation, strict typing in the python bindings & how much you avoid bloat. Right now...

Array evals on array columns with all nulls result in empty (0-height) dataframes

1

### Polars version checks - [X] I have checked that this issue has not already been reported. - [X] I have confirmed this bug exists on the [latest version](https://pypi.org/project/polars/) of...

**Describe the bug** Series.loc can accept a series of bools, but this is not reflected in the [type signature](https://github.com/javascriptdata/danfojs/blob/76386815061436f031fb778c9a1e4595077a3812/src/danfojs-base/core/series.ts#L143). This shows a type error in VSCode: ``` const dfd =...

cryptic error messages when col_select has no valid columns

1

Hello! Was getting this cryptic error message in readr::read_delim and traced it to vroom. It occurs when `col_select` has no valid columns. MWE: ``` foo

Loading a csv with NaN, Inf, -Inf values with `col_double()` works as expected (#1225): ``` read_csv("a\nNaN\nInf\n-INF", col_types = cols(a=col_double())) ## A tibble: 3 × 1 # a # #1 NaN...

FR: Option to load missing reasons / codes as separate columns

1

In many datasets, missing values are interlaced with data as codes or strings. `read_delim()` et al., presently have an option to replace these values with `NA`, but do not have...

Support for labeled missingness

1

Presently, missing values (whether specified at a [schema-level](https://specs.frictionlessdata.io/table-schema/#missing-values) or [field-level](https://github.com/frictionlessdata/datapackage/pull/24)) are specified using their physical values. It is not uncommon for these physical missing values to represent logical *reasons* for...

I'm creating this thread in response to @pschumm 's comment [here](https://github.com/frictionlessdata/specs/issues/367#issuecomment-1912022529), so as to not pollute the original topic. > We are in the process of publishing a set of...

(Adapted from my comment [here](https://github.com/frictionlessdata/specs/pull/859#issuecomment-1951459098) at @peterdesmet's request!) (Note that I would consider this proposal to be "low-priority" at the present moment, because it depends on the acceptance of the...